330C IG Series12V features include a separate 1/4” stainless steel braided leader PTFE-lined hose and separate check valve. Industrial Grade (IG) compressors are specifically designed to fill air reservoir tanks and feature a specialized head assembly that includes a newly-developed, patents pending intercooler for higher heat dissipation. All IG compressors are certified CE spec. and feature outstanding sealing properties to the elements. Additionally, all IG compressors are equipped with stainless steel braided PTFE-lined leader hoses and a separate check valve assembly that serves to protect the compressor by eliminating the possibility of high amperage restarts. IG compressors require the use of a pressure switch that allows operation up to each compressor’s maximum working pressure as well as a relay for installation.